Results 61 to 70 of about 3,022 (277)
Surrounding Rock Control Technology When the Longwall Face Crosses Abandoned Roadways: A Case Study
Geofluids, 2021 When a working face is crossing the abandoned roadways, problems such as roof subsidence, rock fracture, and instability will occur, resulting in widespread roof fall and rib spalling, which seriously affect safe and efficient mining on the working face.
Zhenpeng Jiang +3 more
doaj +1 more source
Meitan kexue jishu, 2023 The utilization of underground space in abandoned mines is a key direction supported by the coal industry. By combining underground space utilization, flood storage, and heat supply in winter, this paper proposes a comprehensive utilization model of ...
Yuan ZHANG +3 more
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Deep Underground Science and Engineering, EarlyView.This study presents an integrated workflow to evaluate secure and large‐scale CO2 storage in depleted oil reservoirs of the Cambay Basin, India. Industrial CO2 sources are systematically matched with mature oil fields using a quantitative source–sink framework to minimize transport distance and cost.
Bhaskarjyoti Khanikar
wiley +1 more source
Hydrogen Production from Coal Industry Methane
Eurasian Chemico-Technological Journal, 2022 Coal industry methane is a fossil raw material that can serve as an energy carrier for the production of heat and electricity, as well as a raw material for obtaining valuable products for the chemical industry.
Е.V. Matus +3 more
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The use of thermochemical technologies for mining abandoned coal reserves
Sustainable Development of Mountain Territories, 2023 Introduction. Currently, despite the intensive development of high-performance mining equipment, significant coal reserves remain in the subsurface, which are impractical to extract using existing technologies and methods of mining them. At the same time, underground and especially open-pit mining operations are significantly inferior to the ...
Iosif ZAKORSHMENNYI +3 more
openaire +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez +3 more
wiley +1 more source
Characteristics and applications of gas resources in abandoned coal seam groups within mining areas
Meitan kexue jishuAffected by overcapacity, resource protection, international environment and other factors, the number of closed coal mines in Huainan and Huaibei areas is large, but the available resources of abandoned mines are rich and diverse.
Xuefeng TAO +9 more
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Analysis of water-filling process in goaf of closed mine
Gong-kuang zidonghua, 2018 In order to research water-filling problem in goaf of closed mine, taking Daihe Coal Mine as research object， mining space method was used to calculate water-filling volume in goaf of the closed mine according to geological and hydrogeological conditions
BI Yaoshan +5 more
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Advances in Materials Science and Engineering, 2021 Storage is currently a major obstacle to the promotion of hydrogen energy. Hydrogen storage in abandoned coal mines can achieve the effective use of underground space while meeting the growing demand for energy storage facilities, which can bring ...
Wang Liu, Peng Pei
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Energy Science &Engineering, EarlyView.This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
wiley +1 more source